Eyesine

Tetryzoline (also known as tetrahydrozoline) is a drug used in some over-the-counter eye drops and nasal sprays. Tetryzoline was patented in 1954, and came into medical use in 1959.[3] Contents 1 Side effects 1.1 Overdose 2 Pharmacology 2.1 Pharmacodynamics 2.2 Pharmacokinetics 3 Chemistry 4 Society and culture 4.1 Names 4.2 Urban legend 4.3 Criminal use 5 References Side effects Tetryzoline eye drops may cause blurred vision, eye irritation and dilated pupils.... [wikipedia]